Merging tow commands with pipe sign output of the first command is input of second command[root@pc1 disk]# cat /etc/squid/squid.conf I moreCount the total lines of squid.conf[root@pc1 disk]# cat /etc/squid/squid.conf I wc -L

Show only spool words in squid.conf[root@pc1 disk]# cat /etc/squid/squid.conf I grep spool